146
CHROMATOGRAPH
C
GC 3400
GC3400, Gas Chromatograph
Features:
●
Self-diagnostic function:
1) Core tests; 2) Automatic tests; 3) Extended tests;
4) Basic tests;
Monitor the status of GC continuously.
Once finding faults, it’ll display the information
and show the wrong zone and the settling method.
●
Self-protective function:
1) Overrun temperature protection; 2) Short circuit hint;
3) TCD filament protection; 4) FID flameout hint; 5) PFD
exposed-light protection; 6) Keyboard locking with
password; etc., ensuring normal running
GC3400
Applications:
GC3400 Gas Chromatograph, made according to
international standards, its technical feature and index
are in the world high level. The key components are
imported from world famous suppliers. It is widely used
for petrol-chemistry, environmental protection, epidemic
prevention, pharmacology, scientific research, etc.
●
Simple operation, powerful automation:
1) All parameters can be entered through keyboard with prompt function; 2) 4 sets of complete
chromatography analysis methods can be stored and recalled automatically; An auto sampler can be connected;
Parameters can be modified instantly while the GC is running; 5) Chromatography analysis method can be
activated for 99 times repeatedly at the same time. It’s especially suitable for unattended operation
●
More choices of injectors:
1) On-Column Injector for Packed Column; 2) Flash Vaporization Injector for Packed
Column 3) Automatic or manual gas inject valve; 4) Headspace sampler; 5) Thermal desorption system
6) Split/Splitless Capillary Injector; Three Injectors or two Split/Splitless Capillary Injectors can be fixed on GC
●
More choices of detectors:
1) TCD; 2) FID; 3) ECD; 4) FPD; 5) TSD Maximum of two TCDs or three different kinds of
detectors can be installed
●
Reactor:
1) Internal; 2) external
●
Time programming of detectors:
Each of detectors has 5-ramp programmable time control. Output-signal,
attenuation range, and polarity can be set automatically
●
Time programming of external events:
Providing 4 external events with 20-ramp. programmable time control. The
optional GC relays may be used to automate valves, operate split/splitless capillary injectors, drive auxiliary devices,
or switch signals between detector A and detector B in a run
●
Many kind of special-purpose GC can be provided according to user’s request.
Specifications:
●
Column oven:
Operating temperature range:
ambient temperature to 420°C;
Dual opening-door at the back of column oven;
Cooling time: 250°C to 50°C in 5 min;
Programmable oven with 4-ramp temperature
control;
Temperature programming rate 0.1-50°C/min.
●
Injector system:
Operating temperature range: ambient
temperature to 420°C
●
Thermal conductivity detector -TCD:
Maximum temperature: 420°C
Sensitivity:
≥
12000mv • mL/mg (for butane)
Linear range: 10
5
Current range: 50 to 400mA
●
Filament protection:
If He or H2 carrier gas flow in the detector cell is
cut off for 4 minutes, filament power will be shut off
automatically.
●
Flame ionization detector-FID:
Maximum temperature: 420°C
Minimum detectivity:
≤
1.3x 10
-12
g/s (n-C
16
)
Linear range: 10
7
Flameout hint: monitoring the status of GC
continuously after being turned on.
●
Electron capture detector-ECD:
Maximum temperature: 420°C
Minimum detectivity:
≤
0.1pg/mL (y-666)
Linear range: 10
4
Emission source: 11mC
63
Ni
●
Flame photometric detector-FPD:
Maximum temperature: 420°C
Minimum detectivity:
[P]
≤
1x 10
-12
g/s (tributyl phosphate)
[S]
≤
1x10
-10
g/s (p-methylsulfurphosoharous)
Linear range: [P]:10
5
[S]: 10
3
Two air-hydrogen flames: For large volume injection
or trace sample injection analyses;
Single air-hydrogen flame: sulfur sensitivity can be
increased;
Direct output: for phosphorus or sulfur analyses;
Square-root output: for sulfur analyses;
Exposed-light protection:
When exposed-light current is more than 12pA, high
voltage will be cut off automatically.
●
Nitrogen-phosphorus detector-TSD:
Maximum temperature: 420°C
Minimum detectivity:
[N]
≤
1x10
-13
g/s (azobenzene)
[P]
≤
5x10
-14
g/s (malathion)
Linear range: [N]:10
5
[P]: 10
4
